Caterpillar of Mottled Emigrant

Emigrant (Catopsilia) caterpillars can be difficult to differentiate by appearance alone, with much blurring of any distinctions. However, what I've learned over the years is that, generally speaking, Common/Lemon (C. pomona) larvae have a more or less solid white lateral stripe and at times wide, dark band immediately above, while Mottled (C. pyranthe) cats typically have a faint yellow line along the top of their white lateral stripe.

It looks like you may have two kinds on that leaf unless that is a reddish flower. Find out what the plant is first.

Definetly Caterpillars, but I have no idea what kind.